# Django 2.0.dev20170216164632 documentation

# Source code for django.contrib.postgres.functions

    from django.db.models import DateTimeField, Func

    class TransactionNow(Func):
        template = 'CURRENT_TIMESTAMP'

        def __init__(self, output_field=None, **extra):
            if output_field is None:
                output_field = DateTimeField()
            super().__init__(output_field=output_field, **extra)